OmniGraffle Tip – click through object

You can create two objects, one on top of the other. By default the top object has no fill, so that you can see the object underneath and put a border around an object, or group multiple objects together. However you cannot click the object “underneath”, the top object blocks selection.

Click through no fill 1

There is a global setting in Preferences:

Click through no fill 2

And now you can select through:
Click through no fill 3

Example usage for Network Engineers:

Click through no fill 4

Thanks to Carl for the tipoff (you know who you are!)